Hi guys. I followed @goalque R9 390 + Akitio build and connected it to my 2012 MBP (non retina) running 10.11.1. The GPU and Akitio are powered by a 450w Silversstone PSU, and am using a power riser + molex.
After using the autoscript (absolutely amazing work @goalque), I gained acceleration in OpenCL and graphics when connected to a secondary monitor. I am however getting a lot of screen flickering.
The system also crashes after a few minutes after loading youtube or going into system pref. Oddly, graphically intensive work such as running Valley or FCPX haven't caused crashes.
I read AMDs are generally not stable on Akitios, but I was wondering if there is anything I can try with before returning it and purchasing a Nestor NA211TB.